Which process describes rainfall being captured by leaves or canopy and not reaching the ground?

Which process describes rainfall being captured by leaves or canopy and not reaching the ground?

• A. Lag time
• B. Interception
• C. Leaching
• D. Island arc

Answer: (B)

Interception is the capture of rainfall by the leaves and canopy, so not all rain reaches the ground right away. Water is held on leaf surfaces and in the canopy and can evaporate back into the air before ever infiltrating the soil. Only when the interception capacity is exceeded or the rainfall lasts long enough does water reach the ground as throughfall or stemflow. This makes interception the best description for rainfall being captured by vegetation and not reaching the ground. The other terms describe different ideas: lag time is the delay between rainfall and peak runoff, leaching is the downward movement of soluble nutrients through soil with water, and an island arc is a geological feature formed by tectonic plate activity.

Interception is the capture of rainfall by the leaves and canopy, so not all rain reaches the ground right away. Water is held on leaf surfaces and in the canopy and can evaporate back into the air before ever infiltrating the soil. Only when the interception capacity is exceeded or the rainfall lasts long enough does water reach the ground as throughfall or stemflow. This makes interception the best description for rainfall being captured by vegetation and not reaching the ground.

The other terms describe different ideas: lag time is the delay between rainfall and peak runoff, leaching is the downward movement of soluble nutrients through soil with water, and an island arc is a geological feature formed by tectonic plate activity.